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Re: port-sparc/37080: second stage boot loader fails on SparcStation 2
The following reply was made to PR port-sparc/37080; it has been noted by GNATS.
From: Andreas Gustafsson <gson%gson.org@localhost>
To: Martin Husemann <martin%duskware.de@localhost>
Subject: Re: port-sparc/37080: second stage boot loader fails on SparcStation 2
Date: Thu, 18 Sep 2014 12:00:43 +0300
In a response to PR 49202, Martin Husemann wrote:
> On Wed, Sep 17, 2014 at 08:00:00PM +0000, Andreas Gustafsson wrote:
> > Based on the "Data Access Exception" message and the ROM revision,
> > it looks like I may also be be suffering from PR 37080.
> That is good, isn't it? As an expert in cvs bisection, you can now find
> out wich commit is the culprit.
That's easier said than done. My usual bisection tools are not of
much use here because they are based on doing full release builds,
which no recent NetBSD release is able to host for versions this old,
and on automtic testing of the failure condition, which is hard to do
for a boot failure that only occurs on physical hardware.
> sys/arch/sparc/stand/bootxx/promlib.c and
> sys/arch/sparc/sparc/promlib.c go back to early 1999 with only ~50 commits
> in total, however it may not always be possible to warp back those files
Since reportedly the bootloader from 3.1 works and the one from 4.0RC1
does not, I think the interval between the netbsd-3 and netbsd-4
branch points would be a good starting point.
In any case, it's unlikely that I will have the time to track this
down any time soon.
Andreas Gustafsson, gson%gson.org@localhost
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